It is very happy at 800 in DDX with nice low contrast and dead easy to print. I will be increasing speed to get less shadow detail for indoor or low contrast work, but still use 800 or so for avge contrast I think-early days.
In DDX is has smooth grain which is not that big at all, but less crisp than HP5 by a considerable margin. It therefore gives great 'soft' portraits of kids (my experiences) with smooth tones and esp in high values, very smooth skin tones as it seems to lack the salt/pepper grain (ie dark spots) that many films have.
I am going to try it with some dev with more edge, perhasp Acutol or FX39, which supposedly give good acutance and speed to see what happens.
Great fast film, but as I say, tonality over bite. HP5 has far greater acutance, like for like and is not too far behind in speed, maybe 1/2 stop to stop tops.
Tom